diff options
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/include/mach/io.h | 4 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/mach/sdrc.h | 24 |
2 files changed, 26 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index d92bf796448..0610d7e2b3d 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -185,11 +185,13 @@ #define omap_writew(v,a) __raw_writew(v, IO_ADDRESS(a)) #define omap_writel(v,a) __raw_writel(v, IO_ADDRESS(a)) +struct omap_sdrc_params; + extern void omap1_map_common_io(void); extern void omap1_init_common_hw(void); extern void omap2_map_common_io(void); -extern void omap2_init_common_hw(void); +extern void omap2_init_common_hw(struct omap_sdrc_params *sp); #define __arch_ioremap(p,s,t) omap_ioremap(p,s,t) #define __arch_iounmap(v) omap_iounmap(v) diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index 8e0740eb83f..adc73522491 100644 --- a/arch/arm/plat-omap/include/mach/sdrc.h +++ b/arch/arm/plat-omap/include/mach/sdrc.h @@ -81,7 +81,29 @@ #ifndef __ASSEMBLER__ -void __init omap2_sdrc_init(void); +/** + * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate + * @rate: SDRC clock rate (in Hz) + * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate + * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate + * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate + * @mr: Value to program to SDRC_MR for this rate + * + * This structure holds a pre-computed set of register values for the + * SDRC for a given SDRC clock rate and SDRAM chip. These are + * intended to be pre-computed and specified in an array in the board-*.c + * files. The structure is keyed off the 'rate' field. + */ +struct omap_sdrc_params { + unsigned long rate; + u32 actim_ctrla; + u32 actim_ctrlb; + u32 rfr_ctrl; + u32 mr; +}; + +void __init omap2_sdrc_init(struct omap_sdrc_params *sp); +struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r); #ifdef CONFIG_ARCH_OMAP2 |